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                            <div style="color:gray; word-break: break-all; font-size:12px;">原英文版地址: <a href="https://www.elastic.co/guide/en/elasticsearch/reference/7.7/binary.html" rel="nofollow" target="_blank">https://www.elastic.co/guide/en/elasticsearch/reference/7.7/binary.html</a>, 原文档版权归 www.elastic.co 所有<br/>本地英文版地址: <a href="../en/binary.html" rel="nofollow" target="_blank">../en/binary.html</a></div>
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<span class="breadcrumb-node">binary(二进制)数据类型</span>
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<a id="binary"></a>binary(二进制)数据类型
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<p>
<code class="literal">binary</code>(二进制)类型接受二进制值以<a href="https://en.wikipedia.org/wiki/Base64" class="ulink" target="_top">Base64</a>编码的字符串。

默认情况下，该字段不存储，并且不可搜索：
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<div class="pre_wrapper lang-console">
<pre class="programlisting prettyprint lang-console">PUT my_index
{
  "mappings": {
    "properties": {
      "name": {
        "type": "text"
      },
      "blob": {
        "type": "binary"
      }
    }
  }
}

PUT my_index/_doc/1
{
  "name": "Some binary blob",
  "blob": "U29tZSBiaW5hcnkgYmxvYg==" <a id="CO290-1"></a><i class="conum" data-value="1"></i>
}</pre>
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<p><a href="#CO290-1"><i class="conum" data-value="1"></i></a></p>
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<p>Base64编码的二进制值不能有嵌入的<code class="literal">\n</code>。</p>
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<h3 class="title">
<a id="binary-params"></a><code class="literal">binary</code>字段参数
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<p><code class="literal">binary</code>字段接受以下参数：</p>
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<a class="xref" href="doc-values.html" title="doc_values"><code class="literal">doc_values</code></a>
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是否应该以列跨度(column-stride)的方式将字段存储在磁盘上，以便以后用于排序、聚合或编写脚本? 

接受<code class="literal">true</code>或<code class="literal">false</code> (默认)。
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<a class="xref" href="mapping-store.html" title="store"><code class="literal">store</code></a>
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字段值是否应该与<a class="xref" href="mapping-source-field.html" title="_source 字段" rel="nofollow"><code class="literal">_source</code></a>字段分开存储和检索。

接受<code class="literal">true</code>或<code class="literal">false</code> (默认)。
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